C-SKY port: Configury

C-SKY port: Configury

2018-08-17  Jojo  <jijie_rong@c-sky.com>
	    Huibin Wang  <huibin_wang@c-sky.com>
	    Sandra Loosemore  <sandra@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>
	    Andrew Jenner  <andrew@codesourcery.com>

	C-SKY port: Configury

	gcc/
	* config.gcc (csky-*-*): New.
	* configure.ac: Add csky to targets for dwarf2 debug_line support.
	* configure: Regenerated.

	contrib/
	* config-list.mk (LIST): Add csky-elf and csky-linux-gnu.

Co-Authored-By: Andrew Jenner <andrew@codesourcery.com>
Co-Authored-By: Chung-Lin Tang <cltang@codesourcery.com>
Co-Authored-By: Huibin Wang <huibin_wang@c-sky.com>
Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>
From-SVN: r263627